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A preliminary survey of the bats of the Deerlodge National Forest Montana : 1991 (1993)

Author: Butts, Thomas W; Montana Natural Heritage Program; Beaverhead-Deerlodge National Forest (Agency : U.S.)
Volume: 1993
Subject: Bats; Bats; Bats; Little brown bat; Long-eared myotis; Myotis yumanensis; Silver-haired bat; Big brown bat; Hoary bat; Mist netting; Harp trap; Adits; Bats; Bats; Caves
Publisher: Helena, Mont. : Montana Natural Heritage Program
Year: 1993
Language: English
Call number: 599.4
Digitizing sponsor: Montana State Library
Book contributor: Montana State Library
Contributor usage rights: See terms
Collection: MontanaStateLibrary; americana
Scanfactors: 6

Full catalog record: MARCXML

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Description

Title from cover

"Final report, September 1993."

Includes bibliographical references (p. 32-33)

Six species of bats, representing four genera, were documented by capture during this phase of the study. These were the Big brown bat, (Eptesicus fuscus), the Little brown bat (Myotis lucifugus), the Yuma bat (Myotis yumanensis), the Long-eared myotis (Myotis evotis), the Hoary bat (Lasiurus cinereus), and the Silver-haired bat (Lasionycteris noctivagans). Relative bat densities varied between habitats. Those with rock-outcrops, beaver ponds, mature hardwoods, mature Douglas fir, or riparian areas nearby had the greatest bat activity. Findley (1993) stated that an increase in species richness accompanies increased availability of roosts. "Forested regions lacking cliffs, caverns, and caves support fewer species, and those that do occur are known to use trees as daytime roosts in summer. Mountains, broken topography with opportunities for roosting in crevices, cliff faces, caverns, and caves support richer communities" (Findley, 1993). Management prescriptions that maintain undisturbed stand of old-growth forest, especially stands of Douglas fir and mature hardwoods, the maintenance of healthy riparian area, and the preservation of caves and access to abandoned mine adits will provide roosting and foraging habitat for a diversity and abundance of bats. Management activities that promote large lodgepole pine stands, and even-aged management will not

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